Additionally, when you sell, there are very specific issues that need to be addressed. If certain procedures are not followed, the IRS can seize a large percentage of sale proceeds. Get professional advise from a tax accountant with international experience before you get too deep, so you can get a more complete picture of how the purchase can benefit or limit you.
REALTORS have a designation for agents with specialized international knowledge: CIPS. The Certified International Property Specialist is not someone who just sells property in other countries, it is one who understands the special issues of international Buyers in their local markets. Finding an agent with this designation is something else you can do to make your transaction as smooth as possible.